Number of pentagons in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares).
A332608
Number of pentagons in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares).
Terms
- a(0) =0a(1) =0a(2) =4a(3) =12a(4) =24a(5) =28a(6) =80a(7) =128a(8) =112a(9) =200a(10) =236a(11) =356a(12) =472a(13) =652a(14) =656a(15) =940a(16) =1040a(17) =1300a(18) =1600a(19) =1948a(20) =2048a(21) =2588a(22) =2856a(23) =3260a(24) =3716a(25) =4492a(26) =4572a(27) =5324a(28) =5904a(29) =6508
External references
- oeis: A332608